: To stop the distress beacon, Sheppard performs a dangerous external climb up the side of the city's central spire to reach the control room.
: The stress of the situation ultimately strains McKay's relationship with Katie Brown, setting the stage for their eventual breakup. [S4E13] Quarantine
: The team must regain control of the computer systems to override the countdown before the city is destroyed. Key Character Developments : To stop the distress beacon, Sheppard performs
: When Sheppard breaks a window to enter the control room, the city interprets the breach as a quarantine violation and initiates a self-destruct sequence. : To stop the distress beacon